Isaac Hong

- Fallin'
- Queen of Tears (Original Television Soundtrack), Pt. 5 - Single · 2024
- I Can
- Doctor on the Edge, Pt. 4 (Original Soundtrack) - Single · 2026
- Close Your Eyes
- The Uncanny Counter, Pt. 1 (Original Television Soundtrack) - Single · 2020
- Pain
- Happiness, Pt. 2 (Original Television Soundtrack) - Single · 2021
- My little town
- Hello, goodbye. - Single · 2025
- Savior (Hong Isaac Version)
- The Trunk (Soundtrack from the Netflix Series) · 2024
- In You
- Our Unwritten Seoul (Original Soundtrack) Part.4 - Single · 2025
- My Love by My Side
- When Life Gives you Tangerines (Original Soundtrack from the Netflix Series) - Chapter 3 - Single · 2025
- Lovers
- Lovers - Single · 2025
- Kiss me Kiss me
- Lovestruck in the City (Original Television Soundtrack) Special · 2021

Da Capo (Original Motion Picture Soundtrack)

Da Capo (Original Motion Picture Soundtrack)

2020

AGENT : BLACKOUT LIGHT ('Black Desert' Original Soundtrack) - Single

AGENT : BLACKOUT LIGHT ('Black Desert' Original Soundtrack) - Single

2026
Doctor on the Edge, Pt. 4 (Original Soundtrack) - Single

Doctor on the Edge, Pt. 4 (Original Soundtrack) - Single

2026
Castle In The Air - EP

Castle In The Air - EP

2026
Curtain Up, Class, Pt. 4 (Original Soundtrack) - Single

Curtain Up, Class, Pt. 4 (Original Soundtrack) - Single

2026
Hello, goodbye. - Single

Hello, goodbye. - Single

2025
Our Unwritten Seoul (Original Soundtrack) Part.4 - Single

Our Unwritten Seoul (Original Soundtrack) Part.4 - Single

2025
Dreaming (From "SHOW MUSICAL Dream High") - Single

Dreaming (From "SHOW MUSICAL Dream High") - Single

2025